Hamburger mold



Nov. 13, i951 W. L JAMEsoN ETAL 2,574,83

HAMBURGER MOLD r Filed may 27, 194e v INVENTORS Wl//lam Jameson Fran/rL. Rogers TTORNEY Patented Nov. i3, @95E ifi L. .lnmeson and lliisnlf:lil. Rogers, San

.loses Celti'.

Application May 27, HMS, Serial No. 672,337

(Ci. lf3- 32) The present invention relates to improvements in molds,and has particular reference to a mold adapted for shaping ground meator the like, generally known as Hamburger into standard flat units orpatties of desired form and size, although it may be used for diderentpurposes.

It is further proposed to provide a mold of the character' describedthat is simple in construction, sanitary, efiicient in use, easy to takeapart and clean, and which will produce :meat patties of uniform size,and thicmess.

It is a further object or our invention to provide a mold o thecharacter described which may he easily adjusted for producing pattiesof diierent thicknesses.

It is further contemplated to provide a mold in which a mold platecooperates with a mold chamber in flattening or smashing c. charge ofground meat, and in trimming the edges, the mold plate being mounted foreutomatic retiu'n to in active position for facilitating and speeding'up charging operations.

And `finally. it is an object of our invention to provide securing meanswhereby the mold may be speedily attached to and detached from asupporting base. for firmly holding the mold when in use, and ic allowof easy removal for cleaning operations.

Further objects and advantages of our invention will appear es thespecification proceeds, and the new and useful features of the sainewill he fully dei-ined in the claims attached hereto.

The preferred form of our invention is illus-1- trated in theaccompanying drawing, orming part of this application, in which:

Figure l shows a horizontal section through our mold, taken along linei--i ci Figure 2, the basebeing omitted;

Figure 2, a vertical section taken along line 2-2 of `Figure i.; and

Figure 3. a fragmentary section taken along line 3 3 of Figure 2. e

While we have shown only the preferred form of our invention, it shouldhe understood that various changes `or modifications may be made withinthe scope of the claims hereto attached, without departing from thespirit of the inven tion.

Referring to the drawing in detail. our inverttion comprises in itsprincipal features. a base i. a mold chamber 2 secured thereon, and e.mold plate 3 adapted for cooperation with the chamber in shaping acharge of ground inset or the like.

The base i may be of any suite/ble form, and is lil lli

d preferably made of wood, and of sufcient size and weight to firmlyhold the mold in place during molding operations.

The mold chamber l2 comprises a ring fi internally threaded as at t toreceive a oor plate d which may he screwed into the ring from thebottoni to any desired height. the upper face of the floor plate and theprojecting portion of the ring defining the effective space availablefor receiving the material.

The door plate has suitable finger holds 'i suspended therefrom by meansoi which it may be operated, when the mold chamber is removed from thebase.

For securing the mold chamber upon the base i, we provide two iianges iland d extending from the lower end of the ring in opposite directions.

The flange is formed with s. longitudinal slot it adapted for slidingengagement under a bolt head it suitably secured upon the base, whilethe flange s has a hole it fitting over a boli; it secured in the base,the latter lange being held in place by means of s. wing nut lli.

The flange 3 has a bracket iii projecting therefrom in which issupported, with freedom of re volvlng motion, a vertical post i5, heldin place by a nut il.

The upper end of the post i@ is slotted to receive the outer end of anarm i8 which is pivoted to the post on a horizontal pin it. The armsupports the mold plate t which is circular in form and of e. diametersomewhat in excess oi the ring il.

Opposite the arm ill, the mold plate has a i handle it' projectingtherefrom, the handle preferably comprising a shank 2d lxed to the moldplate and a hand piece 2i of insulating meterial threaded thereon. as at22.

The post it has an arm 23 projecting outwardly therefrom so as to turnwith the post, and a spring 253 connects the arms 2t and it, so as toautomatically pull the mold plate away from the mold cha-miser and intoinactive position. thus normally clearing the mold chamber for chargingoperations.

In use, the operator first adjusts the door plete 5 in the ring l toprovide a mold chamber of desired depth. He then slips the slotted endof the harige il underneath the head ii. lowers the ange t upon thescrew i3, and applies the wing nut iii.

The mold plate :i lacing held normally in raised position by the spring2li, the operator rst applies a piece of waxed paper, somewhat largerthan the rime l to the mold chamber. and their ,daarnaar scoops up apreferably measured amount of ground meat and drops it on the ioor platein approximately central position.

Next he applies a second sheet of waxed paper on top and pulls on thehandle i9' to bring the mold plate down upon the ring 3. The descendingmold plate spreads the ground meat in the mold chamber, while avoidingdirect contact. For more perfect results, the operator will slide themold plate back and forth, causing the same to swing with the post I6,whereby a more even and uniform distribution of the meat through thechamber is assured, and the edge of the party thus formed is trimmedagainst the edge oi the ring.

After the meat patty has thus been molded, the operator releases thehandle, which causes the spring 24 to lift the mold plate, removes themeat patty between the two sheets of waxed paper, and

the hamburger is ready for cooking. In stacking the patties, theoperator may conveniently use the upper sheet of one operation for thebottom sheet of the next operation.

This operation can be carried out very quickly, and if a considerablenumber of hamburgers are to be prepared, as for a restaurant, the iactthat the mold plate snaps back automatically is a greataid in speedingup the process.

Our device may be adjusted to make meat patties of any thickness, and isreadily removable from the supporting base for cleaning purposes. It maybe made of any suitable material, but we preferably use stainless steel.

The handpiece 2l may be detached for storing and shipping purposes.

l. A mold for shaping material of the character described, comprising acylindrical ring having a nat bottom plane transverse to the axisthereof, means for nxedly supporting the ring in horizontal position, aiioor plate supported in the ring to form a mold chamber therewith forreceiving material, and a pressure plate secured with respect to thering and adapted for cooperation with the upper end of the ring formolding the material to the shape of the chamber, the oor plate being inthe form of a disc of a thiol;- ness much less than the height oi thering and being threaded into the ring and having nger holds on thebottom surface thereof whereby the floor plate may be turned foradjusting the depth of the chamber.

2. A mold for shaping material of the character described, comprising acylindrical ring having a flat betteln plane transverse tc the axis ithereof, means for lxedly supporting the ring in horizontal position, aiioor plate supported in the ring to form a mold chamber therewith forreceiving material, and a pressure plate secured with respect to thering and adapted for cooperation with the upper end of the ring formolding the material to the shape of the chamber, the oor plate being inthe form of a disc of a thickness much less than the height of the ringand being threaded into the ring and having ringer holds on the bottomsurface thereof whereby the eor plate may be turned for adjusting thedepth oi the chamber. and the oor plate with its nger holds being madeto clear the bottom plane of the ring when the floor plate is inoperative position for forming the chamber.

3. A mold for shaping material of the charac- 'ter described, comprisinga ring having a flat upper edge, a oor plate supported in the ring inform a mold chamber therewith for receiving material. ineens forhorizontally supporting the ring, a bracket projecting outwardly fromthe ring, a post pivoted in the bracket, a pressure plate adapted tooverlie the ring and having an arm pivoted to the post for swingingmotion in a vertical plane and for turning movement in a horizontalplane, a second arm secured upon the post and projecting outwardiy andupwardly therefrom, and a spring connecting the two arms and tending topull the pressure plate outwardly, the floor plate being in the forrn ofa disc of a thickness much less than the height of the ring and beingthreaded into the ring and having finger holds on the bottoni surfacethereof whereby the iioor plate may turned for adjusting the depth ofthe chamber.

e. A mold for shaping material o1" the character described, comprising aring having parallel upper and iower edges, a door plate supported inthe ring to form a mold chamber therewith for receiving material, asupporting plate having a flat upper face. flanges projecting from thelower end oi the ring in opposite directions and having bottom faces inthe plane of the bottom edge of the ring, means for removably securingthe anges upon the supporting plate, a bracket projecting outwardly fromthe ring over one oi the anges, a post pivotecl in the bracket, and apressure plate adapted to overlie the ring and having an armpivoted tothe post for swinging motion in a vertical plane and for turningmovement in a horizontal plane, the ocr plate being in the forni of adisc of a thickness much less than the height of the ring and beingthreaded into the ring and having ringer holds on the bottom surfacethereof whereby the floor plate may be turned for adjusting the depth ofthe chamber.

WILLIAM JAMESON. FRANK L. ROGERS.

CETED The following references are of record in the ille oi this patent:

UNXTED STATES PATENTS Number Name Date 337,342 lutzner Mar. 2, 1886'513,527 Parker Jan. 30, 1894 iiie Mandelstarnm July 8, 1919 1,530,189Miller et ai Mar. 17, 1925 2,081,455 Holly May 25, 193'? so 2,173,760Moran Sept. 19, 1939 2,228,544. Saclras Jan. 14, 1941 2,311,9@3 Lee Feb.23, 1943 2,330,989 Neville Oct. 5, 1943 c FOREIGN PATENTS 6* 'NumberCountry Date H73?. France May 23, 1936

